NOAA Office of Coast Survey

The NOAA Office of Coast Survey is a branch of the National Oceanic and Atmospheric Administration responsible for mapping and charting U.S. coastal waters. They produce detailed nautical charts, collect hydrographic data, and provide critical information for safe navigation, maritime commerce, and marine safety. Their work helps mariners avoid hazards, supports infrastructure development, and protects the marine environment, ensuring that coastal communities and industries can operate efficiently and safely in the nation’s waters.